The Research On Softening Annealing Dimension PVA/of Ramie Fabric

Ramie fiber is an excellent textile fibers, the fabric is not only good heat absorption;air permeability, and has crisp natural, comfortable and cool, and other styles, domestic jute mill is still mainly using wet spinning method that is first labeled hemp ramie, through combing gill, roving production processes, and then roving unglued manner scouring process, and carried out in wet spinning. Wet spinning process complicated, long process, spinning count is low, the equipment requirements, are difficult to wet processing ramie blended with other fibers, yarn and stiff, it is difficult to develop high quality and variety of textile products. To overcome these shortcomings, high count yarn can be spun in order to improve product quality, and to the production of a wide range of ramie fiber should be shipped in knitting. Ramie fiber and soluble fiber PVA blends, dry spinning process instead of wet spinning process, the realization of ramie spinning pure or blended with other fibers to expand the product range and adapt knitting processing. By adding soluble fiber PVA, to act as an intermediate fiber and hemp fibers, the use of PVA fibers possess unique water soluble by water-soluble polyvinyl alcohol fiber (PVA) associated with ramie textile finishing again in the process of dissolving In addition to polyvinyl alcohol fibers, not only make the product has a soft, light and other features, you can also reduce production costs, improve economic efficiency of enterprises. However, because of its unique product containing PVA process conditions make it ramie fabric finishing process compared with conventional products technical difficulties, a single fabric is processed by high temperature cooking, back-dimensional rate is not ideal, fabric feel very rough. At this point it does not embody its linen and some special style that is "Tough pure, soft and natural, bright and beautiful, dignified and generous" feeling.This topic is intended to address the process of finishing PVA/ramie fabric softening problems with PVA-based fiber spinning ramie yarn withdrawal.of high-dimensional process routes were studied. Dissolution of soluble fiber PVA affecting factors related to finding effective ways to optimize the best back-dimensional process.The resulting fabric of its stiffness, slightly lower breaking strength, whiteness increased capillary effect drape better, white fabric warp dyed dyeing rate increased, there has been linen fabric characteristics should also be the soft. This technology can significantly reduce the production level with hemp, but also can improve the grade of hemp fabric. Simple operation and low cost, suitable for mass production.